In one embodiment, a synchronization engine 116 of an application module 114 may adjust a synchronization scheme 306 based on the implicit data classification of a data item. A synchronization engine 116 may detect a user action 406 executed by a user on a data item 402. The synchronization engine 116 may determine an action type 408 for the user action 406. The synchronization engine 116 may assign an item synchronization priority to the data item 402 based on the action type 406.